How does a proton gradient formed during photosynthesis?

How does a proton gradient formed during photosynthesis?

When the light energy is absorbed by the excited electrons are passed on to the chain of electron carriers present within thylakoid membrane. This energy is utilised to pump protons from the the thylakoid membrane into the thylakoid space which creates the proton gradient.

What happens when the proton gradient is disrupted?

Explanation: ATP synthase, the enzyme responsible for ATP production on the inner mitochondrial membrane, depends on the proton gradient produced by the electron transport chain (ETC). If the proton gradient is disrupted, not as many ATP can be produced.

What are the two Assimilatory powers?

(c) ATP and NADPH2. (d) ATP, NADPH, and CO2. Hint: Assimilatory power is the power generated in light reactions during photosynthesis. The energy providing molecules formed during these reactions that occur in the presence of light helps in carrying out the reactions in dark phase reactions.

What is full form NADP?

Nicotinamide adenine dinucleotide phosphate (NADP), like its homolog nicotinamide adenine dinucleotide (NAD), is a biological carrier of reducing equivalents, i.e., it can accept and deliver electrons. In that sense, it functions generally as a coenzyme.

What happens after sunlight hits photosystem II?

After the photon hits, photosystem II transfers the free electron to the first in a series of proteins inside the thylakoid membrane called the electron transport chain.

What happens when a photon of light hits photosystem II apex?

A photon strikes photosystem II to initiate photosynthesis. Energy travels through the electron transport chain, which pumps hydrogen ions into the thylakoid space. This forms an electrochemical gradient.

Why breakdown of proton gradient is essential during photosynthesis?

Electron transport in photosynthesis produces a proton gradient. The break down of the gradient provides enough energy to cause a conformational change in the F1 particle of the ATPase, which makes the enzyme synthesise several molecules of energy-packed ATP.